6528438 has 96 divisors (see below), whose sum is σ = 17821440. Its totient is φ = 1749600.

The previous prime is 6528421. The next prime is 6528469. The reversal of 6528438 is 8348256.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a d-powerful number, because it can be written as 6⁸ + 5³ + 2¹⁶ + 8² + 4³ + 3¹⁴ + 8² .

Its product of digits (46080) is a multiple of the sum of its prime factors (144).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 64588 + ... + 64688.

It is an arithmetic number, because the mean of its divisors is an integer number (185640).

Almost surely, 2^6528438 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6528438, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8910720).

6528438 is an abundant number, since it is smaller than the sum of its proper divisors (11293002).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6528438 is a wasteful number, since it uses less digits than its factorization.

6528438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144 (or 132 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 6528438 is about 2555.0808206395. The cubic root of 6528438 is about 186.8973289427.

The spelling of 6528438 in words is "six million, five hundred twenty-eight thousand, four hundred thirty-eight".